Bar spacer



Feb. 23 1926, 1,574,327

W. E. WHITE BAR SPACER Original Filed Dec. 26. 1922 k/ HMKM V.

. Wm f I Patented Feb. 23, 1926.

cairn. sirars WILLIAM E \VHITE, OF CHICAGO, ILLINOIS.

nan srAoEn.

Application filed December 28, 1922, Serial No. 608,864. Renewed November 11, 1925.

To all rm/30m it may concern:

Be it known that I, VVILLTAM'E. WHITE, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a Bar Spacer, of which the following is a specification.

My invention relates to concrete reinforcing devices and particularly to a spacer adapted for use in positioning reinforcing bars in concrete. Y

One of the objects of my invention is to provide a spacing device of theaitmost simplicity which may be produced 111 automatic machines and in which all separate pieces which would. otherwise require joining by welding or other means are eliminated.

The desired result is secured by utilizing a single continuous length of wire having chairs formed therein at suitable intervals, the intervals being varied according to the requirements as to spacing and weightcf the reinforcing bars. The device, in specific terms, comprises a continuous wire bent to provide adjacent units each unit including a length of wire the ends of which are outwardly, downwardly and backwardly bent to form legs, the lengths of wire ofadj accnt sections being overlapped in a horizontal plane, and the legs at the ends'of adjacent sections being joined by a substantially horizontal portion constituting a tie or tension member. The overlapped portionsof the lengths of wire are preferably in contact.

There is formed therefore, achair which is of generally triangular form, vlewed either transversely or longitudinally. v

The shape of the legs is important. It will be noted that the legs of each unit are backwardly bent and therefore any force applied to the top of the unit tending to bend the wire and therefore to decrease the distance between the legs is resisted by the peculiar shape resulting from the backward bend. A crushing force at a point directly above the chair is resisted by the cooperating members in contact at the upper end and generally the device is of relatively greatstrength considering its simplicity.

The device will be better understood by reference to the accompanying drawings, wherein,

Fig. 1 is a plan view of a section of spaclegs 1 1..

ing device constructed in accordance with my invention;

Fig. 2 is a side elevation ."F 3 is an end view. 1n the drawings it; will be seen that I utilize a continuous length of wire and by means of suitable machinery I provide adja cent units, each unit comprising a length of wire 10, the ends of which are outwardly, downwardly and backwardly bent, to form The downward and outward bond is shown in Fig. 3, while the backward bond is best shown in Figs. 1 and 2. The thus formed legs are joined by a generally horizontal member 12, which ties the legs and acts as a tension member. The wire 12 is preferably curved, as shown in Fig. 3, to reduce the area of contact with the wood form. It will be noted that the ends of adjacent units are overlapped in a horizontal plane and preferably the overlapped portions are in contact.

The formation of a structure such as decribed results in a spacer composed of units arranged in parallelism but disposed at a slight angle to'the longitudinal axis of; the spacer. The arrangement at the point of formation of the chairs provides a seat for a reinforcing member and any suitable wire thereof, and,

tie may be employed for attaching the bar thereto. a

Obviously the construction 1s capable of some modification and I do not wish tobe limited except as indicated in the appended claims.

I claim:

1'. A spacing device composed of. a continuous wire and laterally disposed loops formed therein, portions ofsaid wire between adjacent loops being straight, the ends of adjacent straight'portions overlapping at the loops.

2. A spacing device composed of a continuous wire and laterally disposed loops '7 formed therein, portions of said wircbe tween adjacent loops being straight, the ends of adjacent straight portions overlap ing at the loops, said loops being generally of triangular form and including a substantially horizontal portion constituting the base of the triangle. f

3. A spacing device composed of a single length of wire and chairs formed therein,

the length of wire between each chair having at each end thereofa downwardly and outwardly projecting portion constituting a leg, the legs of adjacent lengths of wire being joined by a substantially horizontal portion extending transversely of the length of wire.

4. A spacing device composed oi a single length of wire and chairs formed therein, the length of wire between each chair having at oneend-thereof a downwardly; beck- .wardly and outwardly projecting portion constituting e.- leg, the legs of adjacent lengths oft wire being joined by a substantially horizontal portion extending transversely of the length of wire.

A spacing device composed of a single length of wire and chairs formed therein,

the length of wire between each chair having at one end thereof a downwardly and outwardly projecting portion constituting a leg, the legs of adjacent lengths of wire being joined by a substantially horizontal portion extending transversely of the length of wire. the ends of adjacent lengths of wire overlapping.

6. A. spacing device composed of a continuous wire bent to provide units. each unit consisting oi a length of wire having at each end an outwardly, downwardly and backwardly bentportion constituting a leg. adjacent being joined. by a substantially horizontal portion forming; triangular chairs for supporting the spacing device.

Signednt Chicago, Illinois, this 20th day of December, 1922.

WILLIAM E. WHITE. 

